implements #16 - added a helper method for reading multi-line values …

…as one-line text

src/ConfigParser.cs

@@ -208,6 +208,19 @@ public virtual string GetValue(string sectionName, string keyName, string defaul
             return GetRawValue(sectionName, keyName, defaultValue);
         }
 
+        /// <summary>Joins a multiline value using a separator.</summary>
+        /// <param name="sectionName">Name of the section.</param>
+        /// <param name="keyName">Name of the key.</param>
+        /// <param name="separator">The separator (defaults to whitespace).</param>
+        /// <returns>
+        ///   <br />
+        /// </returns>
+        public string JoinMultilineValue(string sectionName, string keyName, string separator = " ")
+        {
+            var multiLineVal = GetValue(sectionName, keyName);
+            return string.Join(separator, multiLineVal?.Split(new[] { Settings.NewLine }, StringSplitOptions.None));
+        }
+
         /// <summary>
         /// Gets the value.
         /// </summary>

tests/ConfigParserTests.cs

@@ -81,5 +81,25 @@ from table
             Assert.Equal("from table", arrayValues[1]);
             Assert.Equal("where ID = '5'", arrayValues[2]);
         }
+
+        [Fact]
+        public void JoinMultilineValueWorks()
+        {
+            // Set up
+            var settings = new ConfigParserSettings { MultiLineValues = MultiLineValues.Simple };
+            var configFile = new ConfigParser(
+                @"[Advanced]
+ExampleValue = Lorem ipsum dolor sit amet
+consectetur adipiscing elit
+sed do eiusmod tempor incididunt
+                ",
+                settings);
+
+            // Act
+            var multiLineJoint = configFile.JoinMultilineValue("Advanced", "ExampleValue", " ");
+
+            // Assert
+            Assert.Equal("Lorem ipsum dolor sit amet consectetur adipiscing elit sed do eiusmod tempor incididunt", multiLineJoint);
+        }
     }
 }